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Finding the Fourth Proportional to 31,898.08, 44,019.60 and 19,314.08

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Solution

The fourth proportional to 31,898.08, 44,019.60 and 19,314.08 is: 26,653.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,898.08 : 44,019.60 = 19,314.08 : x
  2. Step 2: Convert to fraction form
    31,898.08/44,019.60 = 19,314.08/x
  3. Step 3: Cross multiply
    31,898.08x = 44,019.60 × 19,314.08
  4. Step 4: Simplify right side
    31,898.08x = 850,198,075.97
  5. Step 5: Solve for x
    x = 850,198,075.97/31,898.08
  6. Step 6: Final answer
    x = 26,653.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.